Question: What was the Bonaire currency in January 1, 2011?
Paraphrase: On January 1, 2011, what was the currency of Bonaire?
SPARQL (Wikidata): SELECT ?obj WHERE { wd:Q25396 p:P38 ?s . ?s ps:P38 ?obj . ?s pq:P582 ?x filter(contains(YEAR(?x),'2011')) }